Phoenix Contact UT 2,5

Selling Points

  • 1High Current Capacity: Supports up to 24 A nominal current, ensuring reliable power distribution.
  • 2Robust Insulation: Meets V0 flammability rating and UL 94 standards, ensuring safety in harsh environments.
  • 3Flexible Conductor Connection: Accommodates solid and stranded conductors without ferrules, enhancing wiring flexibility.
  • 4Compact Design: Measures 5.2 mm in width and 46.9 mm in height, saving space in tight installations.
  • 5Railway-Ready: Tested for railway applications, meeting stringent safety and performance standards.
Product Details
UT 2,5
Phoenix Contact

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Product type
Feed-through terminal block
Product family
UT
Area of application
Railway industry Machine building Plant engineering Process industry
Number of connections
2
Number of rows
1
Potentials
1
Article revision
22
Overvoltage category
III
Degree of pollution
3
Rated surge voltage
8 kV
Maximum power dissipation for nominal condition
0.77 W
Number of connections per level
2
Nominal cross section
2.5 mm²
Rated cross section AWG
12
Screw thread
M3
Tightening torque
0.5 ... 0.6 Nm
Stripping length
9 mm
Internal cylindrical gage
A3
Connection in acc. with standard
IEC 60947-7-1
Conductor cross section rigid
0.14 mm² ... 4 mm²
Cross section AWG
26 ... 12 (converted acc. to IEC)
Conductor cross section flexible
0.14 mm² ... 4 mm²
Conductor cross section, flexible [AWG]
26 ... 12 (converted acc. to IEC)
Conductor cross-section flexible (ferrule without plastic sleeve)
0.14 mm² ... 2.5 mm²
Flexible conductor cross section (ferrule with plastic sleeve)
0.14 mm² ... 2.5 mm²
2 conductors with same cross section, solid
0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible
0.14 mm² ... 1.5 mm²
2 conductors with same cross section, flexible, with ferrule without plastic sleeve
0.14 mm² ... 1.5 mm²
2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve
0.5 mm² ... 1.5 mm²
Nominal current
24 A
Maximum load current
32 A (with 4 mm² conductor cross section)
Nominal voltage
1000 V
Note
Note: Product releases, connection cross sections and notes on connecting aluminum cables can be found in the download area.
Nominal cross section
2.5 mm²
Identification
 II 2 GD  Ex eb IIC Gb
Operating temperature range
-60 °C ... 110 °C
Ex-certified accessories
3047028 D-UT 2,5/10 3047167 ATP-UT 1205053 SZS 0,6X3,5 3022276 CLIPFIX 35-5 3022218 CLIPFIX 35
List of bridges
Plug-in bridge / FBS 2-5 / 3030161 Plug-in bridge / FBS 3-5 / 3030174 Plug-in bridge / FBS 4-5 / 3030187 Plug-in bridge / FBS 5-5 / 3030190 Plug-in bridge / FBS 10-5 / 3030213 Plug-in bridge / FBS 20-5 / 3030226
Bridge data
21 A / 2.5 mm²
Ex temperature increase
40 K (23.3 A / 2.5 mm²)
Rated voltage
690 V
for bridging with bridge
690 V
- At bridging between non-adjacent terminal blocks
352 V
- At bridging between non-adjacent terminal blocks via PE terminal block
275 V
- At cut-to-length bridging with cover
220 V
- At cut-to-length bridging with partition plate
275 V
Rated insulation voltage
630 V
output
(Permanent)
Rated current
21 A
Maximum load current
28 A
Contact resistance
0.41 mΩ
Torque range
0.5 Nm ... 0.6 Nm
Nominal cross section
2.5 mm²
Rated cross section AWG
14
Connection capacity rigid
0.14 mm² ... 4 mm²
Connection capacity AWG
26 ... 12
Connection capacity flexible
0.14 mm² ... 2.5 mm²
Connection capacity AWG
26 ... 14
2 conductors with same cross section, solid
0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG rigid
26 ... 16
2 conductors with same cross section, stranded
0.14 mm² ... 1.5 mm²
2 conductors with the same cross-section AWG flexible
26 ... 16
Width
5.2 mm
End cover width
2.2 mm
Height
47.7 mm
Depth
46.9 mm
Depth on NS 35/7,5
47.5 mm
Depth on NS 35/15
55 mm
Color
gray (RAL 7042)
Flammability rating according to UL 94
V0
Insulating material group
I
Insulating material
PA
Static insulating material application in cold
-60 °C
Temperature index of insulation material (DIN EN 60216-1 (VDE 0304-21))
125 °C
Relative insulation material temperature index (Elec., UL 746 B)
130 °C
Fire protection for rail vehicles (DIN EN 45545-2) R22
HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R23
HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R24
HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R26
HL 1 - HL 3
Calorimetric heat release NFPA 130 (ASTM E 1354)
27,5 MJ/kg
Surface flammability NFPA 130 (ASTM E 162)
passed
Specific optical density of smoke NFPA 130 (ASTM E 662)
passed
Smoke gas toxicity NFPA 130 (SMP 800C)
passed
Test voltage setpoint
9.8 kV
Result
Test passed
Test voltage setpoint
2.2 kV
Result
Test passed
Open side panel
Yes
Result
Test passed
DIN rail/fixing support
NS 35
Test force setpoint
1 N
Result
Test passed
Rotation speed
10 (+/- 2) rpm
Revolutions
135
Conductor cross section/weight
0.14 mm² / 0.2 kg 2.5 mm² / 0.7 kg 4 mm² / 0.9 kg
Result
Test passed
Time of exposure
30 s
Specification
DIN EN 50155 (VDE 0115-200):2022-06
Spectrum
Service life test category 2, bogie-mounted
Frequency
f
ASD level
6.12 (m/s²)²/Hz
Acceleration
3.12g
Test duration per axis
5 h
Test directions
X-, Y- and Z-axis
Specification
DIN EN 50155 (VDE 0115-200):2022-06
Pulse shape
Half-sine
Acceleration
30g
Shock duration
18 ms
Number of shocks per direction
3
Test directions
X-, Y- and Z-axis (pos. and neg.)
Ambient temperature (operation)
-60 °C ... 110 °C (Operating temperature range incl. self-heating; for max. short-term operating temperature, see RTI Elec.)
Ambient temperature (storage/transport)
-25 °C ... 60 °C (for a short time, no longer than 24 h, -60°C to +70°C)
Ambient temperature (assembly)
-5 °C ... 70 °C
Ambient temperature (actuation)
-5 °C ... 70 °C
Permissible humidity (operation)
20 % ... 90 %
Permissible humidity (storage/transport)
30 % ... 70 %
Connection in acc. with standard
IEC 60947-7-1
Mounting type
NS 35/7,5 NS 35/15

Specifications may be subject to change without notice